How Many National Parks Have You Visited?

The United States has hundreds of national monuments, seashores, historic sites, rivers, battlefields and memorials. But there are only 59 officially-designated national parks.

National parks are very popular and attract millions of visitors every year, but not many people can say they’ve visited them all. In fact, if you’ve been to just 16 of the 59 parks, you’re way above average.

So how many parks have you visited? Take our checklist challenge and find out.

Yellowstone is the largest, most active, and most violent supervolcano on Earth. If it erupted again, the amount of lava and ash ejected would be approximately 5000 times that of Mount St. Helens’ 1980 eruption.